This collection consists of 14 mostly Colt books such as: R.L Wilson's "The Book of Colt Firearms" and "Blue Book Pocket Guide for Colt Dates of Manufacture", Serven's "Colt Firearms: 1836 to 1958/1836 to 1960", Sapp's "Standard Catalog of Colt Firearms" and Grant's "The Colt Armory".